LG RAT375 - Usb Function

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9. TUNER FUNCTION CHECK
TUNER FUNCTION CHECK
Check tuner module voltage
(Pin4: +3.3 V).
NO
Check tuner
module(TU100)
operation.
YES
YES
Check IC102 Pin21, 22, 23, 24, 25
data in/output.
Check tuner module data.
NO
YES
Refer to function check.